Robert watklnson



v (No Modl-J R. WATKINSON.- CQup'ling-f'or Hose and other Pipes. Nd.235,475.

Pa'tnted Dec. 14,1880.

N. PETERS. PHDTUTHOGRAPNER WASHINGTON. D` C.

ROBERT wATKINsON, OF SALFORD,

PATENT OFFICE.

COUNTY OF LANCASTER, ENGLAND.

COUPLING vFOR HOSE AND OTHER PIPES.

SPECIFICATION forming part of Letters Patent No. 235,475, dated December 14, 1880. Application led July 3,1880. (No model.) Patented in England August 22, 1876.

t To all 'whom lt may concern:

of this specication, and represent, in

Figure 1, a section through union-coupling, with the Worm-ferrules for connecting hosepipe; Fig. 2, a side view of the end a of Fig. l itting into coupling lock-ringg; Fig. 3, a plan of ring g.

The universal-joint portion of this improvement was invented by me, and Letters Patent procured therefor in England on the 22d of August, 1876.

I will `proceed to describe the purposes of the gures on the drawings, which are marked t by corresponding letters of reference.

a and e inFig. l are the two tail ends of my universal joint, on which are screwed ferrules t, A A, between which and such tails are two ends of hose-pipes to be coupled up, and marked B. These ferrules and tail-pieces are made slightly conical, to increase the tightness by screwingup. To the outside of the tail-piece e are cast projections for the screws ot' the swivels b b. At the other or inner end of such is `an annular recess to receive a ange or ring ofindia-rubber or other equivalent, c

`mor cut segmental projections of a cam shape, (marked ol.) The second tail-piece, a, is secured c, and on the outer side .of such end are cast i l to the other end of hose-pipe by similar ferrule A, the inner or bush end of which is made to lit the ring of india-rubber or other equivalent, c, the iiange f projecting from this bush,

\ and serves as an abutment for the union coupling-piece g, (shown detached in Fig. 3,) which i y y is also provided with segmental ribs l and recesses corresponding with those on the bush end of tail-piece a, but inversely. The coupling-bush q is also provided with lugs, (marked h.) When two hose-pipes are to be coupled no wire, spring, or clips are required, the ferrule A being drawnover the end of each pipe far enough to leave sufficient space to draw or lscrew over the tail-pieces a and e, after which the ferrules Aare brought forward and screwed over ,the hose-pipe ends onto tail pieces a ,and @by hand-tongs or screw-key. The two hose-pipes are now secured to the tail-pieces or ferrule ends ofthe coupling. The two camswivels on the outside of inner end of tail-piece l act inside union coupling-piecel g. There is a small recess in the cam-swivels (marked 11,) which, on coming fair with the projection inside union-couplin gs, lock the joint rmly. The inclined surfaces of the segmental projections or cams cl and l cause the end of the bush e to compress' the india-rubber; or other ring c, thereby forming an air and water tight joint. The elasticity of ring c forms a spring, which causes the shoulder on the segmental projection or cam al (shown in Fig. 2) to lock the parts together. The inward pressure likewise improves the joints. In uncoupling, the attendant must exert sufficient end pressure ou the ends a and e to liberate the shoulder above referred to in recesses n, after which ythe union coupling-piece can be turned back to unfasten the cam-joint.

4What I claim as new is- In a joint for hose-couplings and other pipes, the combination of the tail end e, having projection d, the rubber ring c, the tail end a, having ange f, and the bush g, having lugs hand ribs i, substantially as shown and described.

ROBERT WATKINSON.

Witnesses:

ARTHUR C. HALL,

SYLVFSTER FLAGLER, U. S. Consular Clerk, Manchester, England. 

